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Upon failure to probe the DFLL, the OPP table will not be cleaned up
properly. Fix this and while at it make sure the OPP table will also be
cleared upon driver removal.
Signed-off-by: Thierry Reding <treding@nvidia.com>
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Instead of copying parts of the CVB table into a separate structure,
keep track of the selected CVB table and directly reference data from
it.
Signed-off-by: Thierry Reding <treding@nvidia.com>
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The kerneldoc for struct tegra_dfll_soc_data is stale. Update it to
match the current structure definition.
Signed-off-by: Thierry Reding <treding@nvidia.com>
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Add basic platform driver support for the fast CPU cluster DFLL
clocksource found on Tegra124 SoCs. This small driver selects the
appropriate Tegra124-specific characterization data and integration
code. It relies on the DFLL common code to do most of the work.
Signed-off-by: Tuomas Tynkkynen <ttynkkynen@nvidia.com>
Signed-off-by: Mikko Perttunen <mikko.perttunen@kapsi.fi>
Acked-by: Michael Turquette <mturquette@linaro.org>
[treding@nvidia.com: move setup code into ->probe()]
Signed-off-by: Thierry Reding <treding@nvidia.com>
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Add shared code to support the Tegra DFLL clocksource in open-loop
mode. This root clocksource is present on the Tegra124 SoCs. The
DFLL is the intended primary clock source for the fast CPU cluster.
This code is very closely based on a patch by Paul Walmsley from
December (http://comments.gmane.org/gmane.linux.ports.tegra/15273),
which in turn comes from the internal driver by originally created
by Aleksandr Frid <afrid@nvidia.com>.
Subsequent patches will add support for closed loop mode and drivers
for the Tegra124 fast CPU cluster DFLL devices, which rely on this
code.
Signed-off-by: Paul Walmsley <pwalmsley@nvidia.com>
Signed-off-by: Tuomas Tynkkynen <ttynkkynen@nvidia.com>
Signed-off-by: Mikko Perttunen <mikko.perttunen@kapsi.fi>
Acked-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Acked-by: Michael Turquette <mturquette@linaro.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
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